Ellen Pompeo and Patrick Dempsey are reminiscing on one of the most memorable episodes of Grey’s Anatomy.

Dempsey, who exited the medical drama in 2015 after playing Derek Shepherd for 11 seasons, appeared on an episode of Pompeo’s new podcast, Tell Me with Ellen Pompeo, that dropped Wednesday. During their conversation, the former onscreen couple recalled the musical episode of Grey’s, “Song Beneath the Song,” during season 7.

“Remember we did that horrible musical number — I mean sorry to disrespect who wrote it — but I mean that musical, we were horrified, right?” said Pompeo, who has starred as Meredith Grey on all 17 seasons of Grey’s. “I did sing a little and I was like, ‘Listen guys, I’m telling you right now like I can’t sing.'”

“Sara Ramirez and Chandra Wilson can sing their asses off,” she added, while Dempsey noted that Kevin McKidd also has “a great voice.”

“‘Listen, I don’t want to chicken out here like we’re doing this musical,'” Pompeo, 51, further remembered saying at the time. “I want to be all in. I want to commit, I want to try, but I’m a terrible singer, but yes if you guys can help me sound better.